Bare-legged Swiftlet vs Bladder Fern

Aerodramus nuditarsus compared with Cystopteris fragilis

Key Differences

• Bare-legged Swiftlet is Least Concern while Bladder Fern is Not Evaluated.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Bladder Fern
Kingdom	Animalia (động vật)	Plantae (thực vật)
Phylum	Chordata (động vật có dây sống)	Tracheophyta
Class	Aves (chim)	Polypodiopsida (Lớp Dương xỉ)
Order	Apodiformes (Bộ Yến)	Polypodiales (Bộ Dương xỉ)
Family	Apodidae	Cystopteridaceae
Genus	Aerodramus	Cystopteris
Species	Aerodramus nuditarsus	Cystopteris fragilis

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Bladder Fern

NE — Not Evaluated

Physical Characteristics

Attribute	Bare-legged Swiftlet	Bladder Fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bare-legged Swiftlet

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

Bladder Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (Canada, United States), and South America (Colombia).

Bare-legged Swiftlet

The Bare-legged Swiftlet (Aerodramus nuditarsus) is a species in the genus Aerodramus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Bladder Fern

The Bladder Fern (Cystopteris fragilis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway